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django: BooleanField, how to set the default value to true?
..._field = models.BooleanField(default=True)
Finally, if you want to dynamically choose at runtime whether or not your field will be selected by default, you can use the initial parameter to the form when you initialize it:
form = MyForm(initial={'my_field':True})
...
Dynamically load JS inside JS [duplicate]
...use my own implementation of it like:
jQuery.loadScript = function (url, callback) {
jQuery.ajax({
url: url,
dataType: 'script',
success: callback,
async: true
});
}
and use it like:
if (typeof someObject == 'undefined') $.loadScript('url_to_someScript.j...
How to use “not” in xpath?
...is a function in xpath (as opposed to an operator), so
//a[not(contains(@id, 'xx'))]
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How to make all Objects in AWS S3 bucket public by default?
...Add Statement"
Then select "Generate Policy"
Copy the text example:
{
"Id": "Policy1397632521960",
"Statement": [
{
"Sid": "Stmt1397633323327",
"Action": [
"s3:GetObject"
],
"Effect": "Allow",
"Resource": "arn:aws:s3:::bucketnm/*",
"Principal": {...
Re-entrant locks in C#
...ch you acquire/release locks.
(One further note, your example isn't technically recursive. For it to be recursive, Bar() would have to call itself, typically as part of an iteration.)
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How to not run an example using roxygen2?
... answer instead of dontrun. From ?example 'donttest encloses code that typically should be run, but not during package checking.' whereas 'dontrun encloses code that should not be run.' I also got a comment by cran maintainers to switch from dontrun to donttest.
– Julian Karch
...
How does Task become an int?
...to be so composable. For example, I could write another async method which calls yours and doubles the result:
public async Task<int> AccessTheWebAndDoubleAsync()
{
var task = AccessTheWebAsync();
int result = await task;
return result * 2;
}
(Or simply return await AccessTheWeb...
What's the best way to get the current URL in Spring MVC?
... the interface doesn't offer the possibility to get the whole URL with one call. You have to build it manually:
public static String makeUrl(HttpServletRequest request)
{
return request.getRequestURL().toString() + "?" + request.getQueryString();
}
I don't know about a way to do this with any...
What are the specific differences between .msi and setup.exe file?
...ntain an MSI instead of individual files. In this case, the setup.exe will call Windows Installer to install the MSI.
Some reasons you might want to use a setup.exe:
Windows Installer only allows one MSI to be installing at a time. This means that it is difficult to have an MSI install other MSIs...
How to change shape color dynamically?
...
I am getting java.lang.ClassCastException: android.graphics.drawable.GradientDrawable cannot be cast to android.graphics.drawable.ShapeDrawable when trying this suggestion.
– prolink007
Aug 15 '13 at 18:37
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